Flexible Electrochromic Devices Based on Optoelectronically Active Polynorbornene Layer and Ultratransparent Graphene Electrodes
作者:Wei-Ren Lian、Ying-Chi Huang、Yi-An Liao、Kun-Li Wang、Lain-Jong Li、Ching-Yuan Su、Der-Jang Liaw、Kueir-Rarn Lee、Juin-Yih Lai
DOI:10.1021/ma201689e
日期:2011.12.27
Novel electrochromic polynorbornenes poly(NBPYTPAM) and poly(HNBPYTPAM), containing electroactive chromophores, were prepared via ring-opening metathesis polymerization (ROMP) from a new norbornene derivative (NBPYTPAM) using Grubbs’ catalyst and followed by hydrogen reduction. The glass transition temperatures (Tg) of poly(NBPYTPAM) and hydrogenated poly(HNBPYTPAM) were 190 and 175 °C, respectively
含有电活性发色团的新型电致变色聚降冰片烯聚(NBPYTPAM)和聚(HNBPYTPAM)是通过新的降冰片烯衍生物(NBPYTPAM)进行开环复分解聚合(ROMP)并使用Grubbs催化剂制备的,然后进行氢还原反应。玻璃化温度(T g聚(NBPYTPAM)和氢化聚(HNBPYTPAM)的温度分别为190°C和175°C。流延到柔性石墨烯涂层的聚对苯二甲酸乙二醇酯(PET)基底上的聚(HNBPYTPAM)膜的循环伏安图在1.0和1.9 V下显示出两个可逆的氧化还原对。柔性电致变色器件是由电活性聚合物和石墨烯涂覆的PET基底制成的。聚(HNBPYTPAM)的电致变色特性显示出出色的稳定性和可逆性,从其黄色中性形式到绿色再到深蓝色具有多阶段的颜色变化。